Quoted from RCSP:The manual says Q9 is the transistor used for the lower right flipper. Q9 tests OK. Q11 seems shorted. In the manual it only lists Q7, Q9, Q10 and Q12 as being in use. Can I remove Q5 and use that?
Thanks!
It makes sense that it is fine until you press the flipper because Q9 is the hold transistor for the right flipper (as opposed to the power one, which is Q3). It's not activated until the EOS triggers it, then it stays on.
Also note that the left and right flippers are not the same coil.